Manley operates a law practice on the accrual method and calendar year. At the beginning of the year Manley's firm had an allowance for doubtful accounts with balance of $15,000. At the end of the year, Manley recorded bad debt expense of $ 23,000 and the balance of doubtful accounts had increased to $18000 ? What is Manley's deduction for bad debt expense this year A. 23,000 B. 3,000 C. 26,000 D. 5,000 E. 20,000